After NFL scouts, coaches and media picked up their jaws that had fallen to the grass at Williams-Brice Stadium, Jadeveon Clowney walked off the field knowing his impressive pro day answered the few remaining questions about his physical abilities.

But the standout defensive end's performance comes as no surprise to former South Carolina teammate and current Bears receiver Alshon Jeffery, who offered quite the endorsement of Clowney prior to Wednesday's workout.

“He knows what he has to do,” Jeffery told Josh Kendall of GoGamecocks.com. “He’s going to be a great player. He’s going to dominate the league, and he’s going to be a Hall of Famer.”

Quite the endorsement, indeed.

To predict that a player will be a Pro Football Hall of Famer before he's even drafted is obviously absurd, but Jeffery's words ring loud in the wake of Clowney's pro day — a workout that SN's Vinnie Iyer believes erased any doubt that the physical freak will be the No. 1 pick in next month's draft.

Clowney was a freshman during Jeffery's final season at South Carolina in 2011, which makes Jeffery's comments even more interesting considering the fact that he formulated such a flattering opinion about a then-18-year-old kid.

But the sight of Clowney's 6-5, 266-pound frame makes the term "kid" laughable. His combination of size, speed and ability results in terms such as "freak" and "once-in-a-lifetime player" coming from many scouting experts' mouths.

Will Clowney be a great player? More than likely. Will he dominate the league? That's pushing it, but he certainly has a chance. Will he be a Hall of Famer?

Easy now, Alshon. Jadeveon Clowney is a great player. Let's leave it at that, for now.